diff --git a/src/elements/lck-windows.c b/src/elements/lck-windows.c
index 2d4c7d1a..6a2142ea 100644
--- a/src/elements/lck-windows.c
+++ b/src/elements/lck-windows.c
@@ -367,22 +367,24 @@ mdbx_resume_threads_after_remap(mdbx_handle_array_t *array) {
  */
 
 static void lck_unlock(MDBX_env *env) {
-  int rc;
+  int err;
 
   if (env->me_lfd != INVALID_HANDLE_VALUE) {
     /* double `unlock` for robustly remove overlapped shared/exclusive locks */
     while (funlock(env->me_lfd, LCK_LOWER))
       ;
-    rc = GetLastError();
-    assert(rc == ERROR_NOT_LOCKED);
-    (void)rc;
+    err = GetLastError();
+    assert(err == ERROR_NOT_LOCKED ||
+           (mdbx_RunningUnderWine() && err == ERROR_LOCK_VIOLATION));
+    (void)err;
     SetLastError(ERROR_SUCCESS);
 
     while (funlock(env->me_lfd, LCK_UPPER))
       ;
-    rc = GetLastError();
-    assert(rc == ERROR_NOT_LOCKED);
-    (void)rc;
+    err = GetLastError();
+    assert(err == ERROR_NOT_LOCKED ||
+           (mdbx_RunningUnderWine() && err == ERROR_LOCK_VIOLATION));
+    (void)err;
     SetLastError(ERROR_SUCCESS);
   }
 
@@ -391,23 +393,26 @@ static void lck_unlock(MDBX_env *env) {
      * releases such locks via deferred queues) */
     while (funlock(env->me_lazy_fd, LCK_BODY))
       ;
-    rc = GetLastError();
-    assert(rc == ERROR_NOT_LOCKED);
-    (void)rc;
+    err = GetLastError();
+    assert(err == ERROR_NOT_LOCKED ||
+           (mdbx_RunningUnderWine() && err == ERROR_LOCK_VIOLATION));
+    (void)err;
     SetLastError(ERROR_SUCCESS);
 
     while (funlock(env->me_lazy_fd, LCK_META))
       ;
-    rc = GetLastError();
-    assert(rc == ERROR_NOT_LOCKED);
-    (void)rc;
+    err = GetLastError();
+    assert(err == ERROR_NOT_LOCKED ||
+           (mdbx_RunningUnderWine() && err == ERROR_LOCK_VIOLATION));
+    (void)err;
     SetLastError(ERROR_SUCCESS);
 
     while (funlock(env->me_lazy_fd, LCK_WHOLE))
       ;
-    rc = GetLastError();
-    assert(rc == ERROR_NOT_LOCKED);
-    (void)rc;
+    err = GetLastError();
+    assert(err == ERROR_NOT_LOCKED ||
+           (mdbx_RunningUnderWine() && err == ERROR_LOCK_VIOLATION));
+    (void)err;
     SetLastError(ERROR_SUCCESS);
   }
 }